Mozilla’s search for a new CEO has concluded after nearly a year-long search. The foundation on Monday announced JavaScript creator and current Mozilla CTO Brendan Eich would fill the role effective immediately.

The foundation’s previous chief, Gary Kovacs, took over the role in 2010 as the successor to John Lilly. Last April, however, he announced intentions to relinquish the position in order to move forward with the next chapter of his life and was replaced by acting CEO Jay Sulllivan.

In a statement on the matter, Eich thanked Sullivan for his contributions to Mozilla and to the web. He said Sullivan has been a passionate force whose leadership, especially during the last year, has been important to the foundation’s success and with Firefox OS.

Eich also took the opportunity to introduce his incoming COO, Li Gong, the person responsible for setting up Mozilla China as well as their Taipei office. Gong will be moving to the US to help manage stateside, Eich said.

Eich started working at Netscape in the mid-90s which is where he created JavaScript during a 10-day burst of activity. Years later, he became one of the founding members of the Mozilla Foundation – a spinoff of AOL – and was named CTO in 2005.

Mozilla’s current plan of attack is mobile. The foundation first created Firefox for Android and more recently, the Firefox OS for smartphones. They’re also working on new services like the Mozilla Location Service and Stumbler apps which should keep them plenty busy for the foreseeable future.